I'm better watching Sub anime, and never watching Dub.
in my opinion, if the dub-english anime can actually damage the quality of the anime itself because english dubber could not mimic as good as the original voice actors. for example, cute quote "Uguu" from Ayu, and "Gao" from Misuzu, I'm pretty sure no one in english dubber could mimic as good as the original voice actors from japan.